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Diffstat (limited to 'mcon/U/shm_for.U')
| -rw-r--r-- | mcon/U/shm_for.U | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/mcon/U/shm_for.U b/mcon/U/shm_for.U new file mode 100644 index 0000000..7666088 --- /dev/null +++ b/mcon/U/shm_for.U @@ -0,0 +1,118 @@ +?RCS: $Id: shm_for.U,v 3.0.1.1 1994/10/29 16:28:37 ram Exp $ +?RCS: +?RCS: Copyright (c) 1991-1993, Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic Licence, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic Licence; a copy of which may be found at the root +?RCS: of the source tree for dist 3.0. +?RCS: +?RCS: $Log: shm_for.U,v $ +?RCS: Revision 3.0.1.1 1994/10/29 16:28:37 ram +?RCS: patch36: call ./Cppsym explicitely instead of relying on PATH +?RCS: +?RCS: Revision 3.0 1993/08/18 12:09:46 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:shm_for shm_att shm_lim: Cppsym Myread ipc uname +?MAKE: -pick add $@ %< +?S:shm_for: +?S: This variable tells us the type of machine we're expecting the +?S: shared memory code to run on. The value is available to C programs +?S: in the C_SHM_FOR manifest. +?S:. +?S:shm_att: +?S: This variable tells us where a shared memory segment should be +?S: attached. Good values are HIGH, LOW, and ZERO. +?S:. +?S:shm_lim: +?S: This variable tells us if shared memory attached HIGH should +?S: have an upper limit. +?S:. +?X: ---------------------------------------------------------- +?X: It's a potential lose to define anything beginning with SHM... +?X: At least we can think that S_ stands for "String version of ..." -- HMS +?X: ---------------------------------------------------------- +?C:S_SHM_FOR ~ %<: +?C: This symbol identifies what we chose for the target system's +?C: default shared memory configuration parameters. +?C:. +?C:S_SHM_ATT ~ %<: +?C: This symbol holds the default "place" to attach shared memory. +?C: Values are "HIGH", "ZERO", and "LOW". +?C:. +?C:S_SHM_LIM ~ %<: +?C: This symbol holds the default upper bound address limit if shared +?C: memory is attached HIGH. If zero, there is no upper limit. +?C:. +?H:?%<:#ifdef SERVE_SHM +?H:?%<:#define S_SHM_FOR "$shm_for" +?H:?%<:#define S_SHM_ATT "$shm_att" +?H:?%<:#define S_SHM_LIM "$shm_lim" +?H:?%<:#endif +?H:. +?W:%<:S_SHM_FOR S_SHM_ATT S_SHM_LIM +: see how to attach shared memory +echo " " +echo "Deciding how to attach shared memory..." >&4 + +case "$ipc" in +shm) + shm_for='Default case' + shm_att='HIGH' + shm_lim='0x0' + if ./Cppsym tower32 tower32_600; then + echo "NCR Towers are usually normal..." + : echo "Oh, an NCR Tower." + : This works for the 600 + shm_for='NCR Tower 32' + shm_att='LOW' + else + case "$uname" in + */uname) + case "`uname -m`" in + ACS??68*) + echo "Oh, an Altos 3068." + shm_for='Altos 3068:' + shm_lim='0x800000' + ;; + esac + ;; + *) + echo "Looks normal to me..." + ;; + esac + fi + + dflt="$shm_for" + rp='Description of shared memory configuration?' + . ./myread + shm_for="$ans" + + dflt="$shm_att" + rp='Where should shared memory be attached?' + . ./myread + shm_att="$ans" + + case "$shm_att" in + HIGH) + dflt="$shm_lim" + rp='What is the upper address limit for shared memory?' + . ./myread + shm_lim="$ans" + ;; + *) + shm_lim='' + ;; + esac + ;; + +*) + echo "but you aren't using shared memory so I won't bother." >&4 + shm_for='NOT CONFIGURED' + shm_att='NONE' + shm_lim='-1' + ;; +esac + |